Principal Full Stack Engineer

Fidelity Financial Services

Confirmed live yesterday High trust

Quick summary

Work type: On-site
Location: Covington, KY
Posted: 3 days ago
Freshness: Confirmed live yesterday
Nearby: 99+ roles within 25 mi

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Salary context

How this pay compares to similar roles

Similar $192k

$132k $248k

below market most similar roles pay here above market

This listing doesn't post a salary. Most similar roles pay $169,550–$214,500.

Based on 240 similar postings.

Employer

About Fidelity Financial Services

Fidelity Investments is one of the largest financial services companies in the world, offering brokerage services, mutual funds, retirement planning, wealth management, and life insurance to individuals and institutions. Industry: Financial Services & Investment Management

Fidelity Financial Services currently has 134 open roles on FindRole.

Listed pay typically runs $107,000–$216,000 across 37 roles with salary data.

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At a glance

TL;DR · Principal Full Stack Engineer

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The Principal, Full Stack Engineer (Node, Python, Angular/ React) joins the team responsible for the Cognitive Computing Platform. In this role, you will design, build, and support runtime services and platforms that power AI-enabled experiences at scale, specifically focusing on conversational chat and natural language interactions. You will develop scalable backend services and interactive UI components while helping teams operationalize GenAI solutions with a focus on reliability and safety. Your technical toolkit includes Node.js, Python, React, Vue, Jest, Cypress, and Playwright. You will also utilize NoSQL data stores like MongoDB and DynamoDB, manage RESTful APIs, and work within AWS, GCP, or Azure cloud environments. Key responsibilities involve implementing RAG fundamentals, LLM prompting patterns, and DevOps practices to solve complex business-unit-wide technical problems.

What does a Full Stack Engineer earn?

Median $211200 from 453 postings across 40 companies.

See salary data

Skills

Node.js Python React MongoDB DynamoDB ElastiCache AWS GCP Azure Jest Cypress Playwright RESTful APIs Service‑Oriented Architecture OpenAPI Swagger JSON Agile DevOps SRE LLM RAG

What you'll do

Design, build, and support runtime services and platforms that power AI-enabled experiences at scale.
Develop and implement scalable backend services using Node.js and Python.
Create intuitive conversational experiences and interactive UI components using React or Vue.
Manage NoSQL data stores including data modeling and performance optimization for MongoDB, DynamoDB, or ElastiCache.
Implement DevOps and SRE practices including monitoring, alerting, and incident response for production systems.
Design and consume RESTful APIs using Service-Oriented Architecture and OpenAPI/Swagger standards.
Operationalize GenAI solutions with a focus on reliability, safety, cost, and performance.
Provide technical guidance to peers through code reviews and design discussions.

What we're looking for

Undergraduate degree or equivalent work experience (preferred).
Relevant cloud, DevOps/SRE, or AI/ML certifications (preferred).
Broad experience across the full software development and delivery lifecycle (preferred).
Engineering proficiency in Node.js and Python to design and implement scalable backend services (preferred).
Experience building enterprise-grade conversational UI components using REACT or Vue with testing frameworks like Jest, Cypress, or Playwright (preferred).
Hands-on experience with NoSQL data stores like MongoDB, DynamoDB, or ElastiCache (preferred).
Solid grounding in DevOps/SRE practices including monitoring, alerting, and reliability engineering (preferred).
Experience with RESTful APIs, Service-Oriented Architecture, and Object-Oriented Programming principles (preferred).

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